Rollup of 8 pull requests by jhpratt · Pull Request #161566 · rust-lang/rust

jhpratt · 2026-08-22T23:37:15Z

Successful merges:

stdarch subtree update #161558 (stdarch subtree update)
compiletest: forward disable-minification from bootstrap #159887 (compiletest: forward disable-minification from bootstrap)
Extend dropping_{references,copy_types} lints to drop_in_place #160229 (Extend dropping_{references,copy_types} lints to drop_in_place)
Add floating point inline ASM support for SPARC #160949 (Add floating point inline ASM support for SPARC)
feat: add symmetric PartialEq impls for Vec, &[T], &mut [T] versus Cow<'_, [T]> #156160 (feat: add symmetric PartialEq impls for Vec, &[T], &mut [T] versus Cow<'_, [T]>)
Derive GenericTypeVisitable for RegionConstraint _correctly_ #160914 (Derive GenericTypeVisitable for RegionConstraint correctly)
be more permissive wrt overflow and and improve diagnostics #161341 (be more permissive wrt overflow and and improve diagnostics)
Add regression test for gce dependency ICE in non-gce crate #161530 (Add regression test for gce dependency ICE in non-gce crate)

r? @ghost

Create a similar rollup

This allows building the resulting workspace with --locked.

fix:set newline_style=Unix

Revert "x86: Followup to add const for pack intrinsics and tests"

…es nothing

…ng_packs Revert "x86: use `simd::intrinsics` for saturating packs"

Honor build.docs-minification=false for rustdoc suites run via compiletest by forwarding --disable-minification to rustdoc.

This is motivated by rust-lang#160164, which added the derive which wouldn't actually work, due to recusrive trait bounds (more on this in a later commit). This change will make it so that these errors are caught in rustc CI.

Becuase its implementations must uphold a soundness-critical invariant.

Generate lockfile in intrinsic-test

_mm_maskmoveu_si128 requires mutable in-bounds memory even when it does nothing

Rollup of 8 pull requests Successful merges: - #161558 (stdarch subtree update) - #159887 (compiletest: forward disable-minification from bootstrap) - #160229 (Extend `dropping_{references,copy_types}` lints to `drop_in_place`) - #160949 (Add floating point inline ASM support for SPARC) - #156160 (feat: add symmetric PartialEq impls for Vec, &[T], &mut [T] versus Cow<'_, [T]>) - #160914 (Derive `GenericTypeVisitable` for `RegionConstraint` _correctly_) - #161341 (be more permissive wrt overflow and and improve diagnostics) - #161530 (Add regression test for gce dependency ICE in non-gce crate)

rust-log-analyzer · 2026-08-23T04:01:23Z

The job dist-aarch64-msvc failed! Check out the build log: (web) (plain enhanced) (plain)

Click to see the possible cause of the failure (guessed by this bot)

rust-bors · 2026-08-23T04:01:47Z

💔 Test for b215b3c failed: CI. Failed job:

auto - dist-aarch64-msvc (web logs, enhanced plaintext logs)

jhpratt · 2026-08-23T04:03:40Z

@bors treeclosed=1 spurious failures

@bors retry

rust-bors · 2026-08-23T04:03:43Z

Tree closed for PRs with priority less than 1.

jhpratt · 2026-08-23T06:18:57Z

@bors treeclosed-

rust-bors · 2026-08-23T06:19:00Z

Tree is now open for merging.

rust-bors · 2026-08-23T07:18:43Z

☀️ Test successful - CI
Approved by: jhpratt
Duration: 3h 14m 20s
Pushing baf1f7c to main...

github-actions · 2026-08-23T07:21:42Z

What is this?

This is an experimental post-merge analysis report that shows differences in test outcomes between the merged PR and its parent PR.

Comparing 2f54787 (parent) -> baf1f7c (this PR)

Test differences

Show 152 test diffs

Stage 0

directives::tests::disable_minification_flag: [missing] -> pass (J4)

Stage 1

vec::test_partial_eq_cow_symmetric: [missing] -> pass (J0)
[ui (polonius)] tests/ui/asm/sparc/reg-conflict.rs#sparc: [missing] -> pass (J1)
[ui (polonius)] tests/ui/asm/sparc/reg-conflict.rs#sparc64: [missing] -> pass (J1)
[ui (polonius)] tests/ui/asm/sparc/reg-conflict.rs#sparcv8plus: [missing] -> pass (J1)
[ui (polonius)] tests/ui/const-generics/generic_const_exprs/dependent-crate-no-gce-128525.rs: [missing] -> pass (J1)
[ui (polonius)] tests/ui/traits/next-solver/overflow/fcw-overflow-to-ambig-with-constraints.rs#next: [missing] -> pass (J1)
[ui (polonius)] tests/ui/traits/next-solver/overflow/fcw-overflow-to-ambig-with-constraints.rs#old: [missing] -> pass (J1)
[ui] tests/ui/asm/sparc/reg-conflict.rs#sparc: [missing] -> pass (J3)
[ui] tests/ui/asm/sparc/reg-conflict.rs#sparc64: [missing] -> pass (J3)
[ui] tests/ui/asm/sparc/reg-conflict.rs#sparcv8plus: [missing] -> pass (J3)
[ui] tests/ui/const-generics/generic_const_exprs/dependent-crate-no-gce-128525.rs: [missing] -> pass (J3)
[ui] tests/ui/traits/next-solver/overflow/fcw-overflow-to-ambig-with-constraints.rs#next: [missing] -> pass (J3)
[ui] tests/ui/traits/next-solver/overflow/fcw-overflow-to-ambig-with-constraints.rs#old: [missing] -> pass (J3)
[assembly] tests/assembly-llvm/asm/sparc-types.rs#sparc: pass -> ignore (ignored when the LLVM version 21.1.2 is older than 22.0.0) (J5)
[assembly] tests/assembly-llvm/asm/sparc-types.rs#sparc64: pass -> ignore (ignored when the LLVM version 21.1.2 is older than 22.0.0) (J5)
[assembly] tests/assembly-llvm/asm/sparc-types.rs#sparcv8plus: pass -> ignore (ignored when the LLVM version 21.1.2 is older than 22.0.0) (J5)

Stage 2

[ui] tests/ui/asm/sparc/reg-conflict.rs#sparc: [missing] -> pass (J2)
[ui] tests/ui/asm/sparc/reg-conflict.rs#sparc64: [missing] -> pass (J2)
[ui] tests/ui/asm/sparc/reg-conflict.rs#sparcv8plus: [missing] -> pass (J2)
[assembly] tests/assembly-llvm/asm/sparc-types.rs#sparc: pass -> ignore (ignored when the LLVM version 21.1.2 is older than 22.0.0) (J6)
[assembly] tests/assembly-llvm/asm/sparc-types.rs#sparc64: pass -> ignore (ignored when the LLVM version 21.1.2 is older than 22.0.0) (J6)
[assembly] tests/assembly-llvm/asm/sparc-types.rs#sparcv8plus: pass -> ignore (ignored when the LLVM version 21.1.2 is older than 22.0.0) (J6)
[ui] tests/ui/asm/sparc/reg-conflict.rs#sparc: [missing] -> ignore (gcc backend is marked as ignore) (J7)
[ui] tests/ui/asm/sparc/reg-conflict.rs#sparc64: [missing] -> ignore (gcc backend is marked as ignore) (J7)
[ui] tests/ui/asm/sparc/reg-conflict.rs#sparcv8plus: [missing] -> ignore (gcc backend is marked as ignore) (J7)
[ui] tests/ui/const-generics/generic_const_exprs/dependent-crate-no-gce-128525.rs: [missing] -> pass (J8)
[ui] tests/ui/traits/next-solver/overflow/fcw-overflow-to-ambig-with-constraints.rs#next: [missing] -> pass (J8)
[ui] tests/ui/traits/next-solver/overflow/fcw-overflow-to-ambig-with-constraints.rs#old: [missing] -> pass (J8)
vec::test_partial_eq_cow_symmetric: [missing] -> pass (J9)

Additionally, 122 doctest diffs were found. These are ignored, as they are noisy.

Job group index

Test dashboard

Run

cargo run --manifest-path src/ci/citool/Cargo.toml -- \
    test-dashboard baf1f7cc4faa79b938148ad52c53e96c0102cbc4 --output-dir test-dashboard

And then open test-dashboard/index.html in your browser to see an overview of all executed tests.

Job duration changes

aarch64-apple-1: 1h 52m -> 3h 12m (+70.9%)
i686-gnu-nopt-1: 1h 26m -> 2h 4m (+44.1%)
i686-gnu-2: 1h 1m -> 1h 28m (+42.8%)
armhf-gnu: 1h 23m -> 51m 38s (-38.5%)
x86_64-gnu-gcc-core-tests: 12m 16s -> 7m 47s (-36.5%)
x86_64-gnu-stable: 2h 31m -> 1h 39m (-34.3%)
x86_64-gnu-llvm-21-1: 43m 11s -> 57m 17s (+32.7%)
x86_64-gnu-llvm-22-2: 1h 11m -> 1h 34m (+31.2%)
x86_64-gnu-distcheck: 2h 13m -> 1h 32m (-30.5%)
dist-x86_64-llvm-mingw: 2h 11m -> 1h 31m (-30.2%)

How to interpret the job duration changes?

Job durations can vary a lot, based on the actual runner instance
that executed the job, system noise, invalidated caches, etc. The table above is provided
mostly for t-infra members, for simpler debugging of potential CI slow-downs.

rust-timer · 2026-08-23T08:01:29Z

Finished benchmarking commit (baf1f7c): comparison URL.

Overall result: no relevant changes - no action needed

@rustbot label: -perf-regression

Instruction count

This perf run didn't have relevant results for this metric.

Max RSS (memory usage)

Results (primary 1.4%, secondary -3.2%)

A less reliable metric. May be of interest, but not used to determine the overall result above.

	mean	range	count
Regressions ❌ (primary)	1.4%	[1.4%, 1.4%]	1
Regressions ❌ (secondary)	-	-	0
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-3.2%	[-3.2%, -3.2%]	1
All ❌✅ (primary)	1.4%	[1.4%, 1.4%]	1

Cycles

Results (secondary 2.0%)

A less reliable metric. May be of interest, but not used to determine the overall result above.

	mean	range	count
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	2.0%	[2.0%, 2.0%]	1
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	-	-	0

Binary size

This perf run didn't have relevant results for this metric.

Bootstrap: 470.877s -> 469.531s (-0.29%)
Artifact size: 400.19 MiB -> 400.26 MiB (0.02%)

rust-bors · 2026-08-23T08:22:56Z

📌 Perf builds for each rolled up PR:

PR#	Message	Perf Build Sha
#161558	stdarch subtree update	`fc623846d42479a841cea3416f7217cd7650f65b` (link)
#159887	compiletest: forward disable-minification from bootstrap	`4637c9f221a9c00d9d449e32350bae6b5ddc2137` (link)
#160229	Extend `dropping_{references,copy_types}` lints to `drop_in…	`06cf400f5ac2ac4f746eab36d8c5324719e05c72` (link)
#160949	Add floating point inline ASM support for SPARC	`a326dec954451093b71c2d298b54980383850149` (link)
#156160	feat: add symmetric PartialEq impls for Vec, &[T], &mut [T]…	`4f420e957a54f601ab4825089e3eea2cdd30df03` (link)
#160914	Derive `GenericTypeVisitable` for `RegionConstraint` _corre…	`76d6ede91bea97e3b4257f35c9c0dff739d8ada7` (link)
#161341	be more permissive wrt overflow and and improve diagnostics	`448505c74fa163c01a0d155f8abd9ba1ca57c174` (link)
#161530	Add regression test for gce dependency ICE in non-gce crate	`d343ff8116e849a966e6586392c581cd565de15b` (link)

parent commit: 2f54787b63

In the case of a perf regression, run the following command for each PR you suspect might be the cause: @rust-timer build $SHA

kx0101 and others added 30 commits May 5, 2026 00:34

feat: add symmetric PartialEq impls for Vec/slices vs Cow<[T]>

33c76f3

Bless UI tests for new PartialEq<Cow<[U]>> impls

3451d8a

Generate lockfile in intrinsic-test

812c5b3

This allows building the resulting workspace with --locked.

set newline_style=Unix

9b65dd5

add comment

d4c0f0a

Merge pull request rust-lang#2209 from xonx4l/fix-line-ending-mismatch

bb56849

fix:set newline_style=Unix

Add floating point inline ASM support for SPARC

1946001

Revert "x86: Followup to add const for pack intrinsics and tests"

50c4cbb

Merge pull request rust-lang#2210 from rust-lang/revert-2035-const_packs

ff185d6

Revert "x86: Followup to add const for pack intrinsics and tests"

_mm_maskmoveu_si128 requires mutable in-bounds memory even when it do…

afaccc0

…es nothing

Revert "x86: use simd::intrinsics for saturating packs"

7b002b7

Merge pull request rust-lang#2211 from rust-lang/revert-2033-saturati…

20ae686

…ng_packs Revert "x86: use `simd::intrinsics` for saturating packs"

Add regression test for gce dependency ICE in non-gce crate

f96018b

compiletest: forward disable-minification from bootstrap

bed62ed

Honor build.docs-minification=false for rustdoc suites run via compiletest by forwarding --disable-minification to rustdoc.

overflow FCW also trigger for overflow -> ambig

7b72b73

only emit a single recursion_depth_exceeding_limit

89c2f92

move fcw to SolverDelegate, resolve infer vars

d3bde3c

add required_depth to InspectGoal

c0683f6

visit nested goal with largest required depth

be2ff7e

misc: replace TypeParameterTransform with a standard type

47ecf35

make GenericTypeVisitable an unsafe trait

cc31dec

Becuase its implementations must uphold a soundness-critical invariant.

implement #[generic_type_visitable(bounds(...))]

ce92005

fix GenericTypeVisitable derive for RegionConstraint

d75b165

apply nits

3f63986

Extend dropping_{references,copy_types} lints to drop_in_place

a5e41ae

Allow dropping_copy_types lint in Miri tests

7c97fbf

Extend undropped_manually_drops lint to drop_in_place

82a27a4

Merge pull request rust-lang#2202 from bjorn3/intrinsic_test_lockfile

33930d9

Generate lockfile in intrinsic-test

Merge pull request rust-lang#2196 from RalfJung/_mm_maskmoveu_si128

42e5eff

_mm_maskmoveu_si128 requires mutable in-bounds memory even when it does nothing

rust-bors Bot mentioned this pull request Aug 23, 2026

stdarch subtree update #161558

Merged

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rust-bors Bot added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Aug 23, 2026

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rust-bors Bot added merged-by-bors This PR was explicitly merged by bors. and removed S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. labels Aug 23, 2026

rust-bors Bot merged commit baf1f7c into rust-lang:main Aug 23, 2026
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rustbot added this to the 1.100.0 milestone Aug 23, 2026

jhpratt deleted the rollup-PxRQM5u branch August 23, 2026 07:19

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Test differences

Stage 0

Stage 1

Stage 2

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rust-timer commented Aug 23, 2026

Overall result: no relevant changes - no action needed

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